// JavaScript Document
sfHover = function() {
    var sfEls = document.getElementById("nav").getElementsByTagName("LI");
    for (var i=0; i<sfEls.length; i++) {
        sfEls[i].onmouseover=function() {
            this.className+=" sfhover";
        }
        sfEls[i].onmouseout=function() {
            this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
        }
		
		var childULs = sfEls[i].getElementsByTagName("UL");
		for(var j=0; j<childULs.length; j++) {
			var childLIs = childULs[j].getElementsByTagName("LI");
			for(var k=0; k<childLIs.length; k++)
			{
				childLIs[k].onmouseover=function(){
					this.className+=" sfhover";
				}
				childLIs[k].onmouseout=function() {
					this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
		}
    }
}
if (window.attachEvent) window.attachEvent("onload", sfHover);